Key to the species of Labasiella SPINOLA

1 Elytral disc without angular fascia ......................................................................................2

- Elytral disc with angular fascia ...........................................................................................6

2 Elytra bicolorous .................................................................................................................3

- Elytra tricolorous.................................................................................................................5

3 Elytral posterior 1/2 completely dark brown (Chile)............................................................. ............................................................................ Labasiella robles OPITZ, nov.sp. (Fig. 80)

- Elytral posterior 1/2 not completely dark brown .................................................................4

4 Elytral anterior dark fascia reaches sutural margin (Chile) ................................................... ...................................................................... Labasiella eugeniae (SOLERVICENS) (Fig. 79)

- Elytral anterior dark fascia does not reach sutural margin (Chile) ........................................ .................................................................. Labasiella bimaculata (SOLERVICENS) (Fig. 75)

5 Epipleural margin near elytral apex serrulate (Chile)............................................................ ................................................................... Labasiella solervicensi OPITZ, nov.sp. (Fig. 81)

- Epipleural margin near elytral apex not serrulate (Chile)...................................................... ................................................................ Labasiella transversalis (SOLERVICENS) (Fig. 82)

6 Elytral asetiferous punctures not striate...............................................................................7

- Elytral asetiferous punctures striate.....................................................................................9

7 Elytral apical 1/5 th devoid of asetiferous punctation (Colombia)........................................... .......................................................................... Labasiella boyaca OPITZ, nov.sp. (Fig. 76)

- Elytral apical 1/5 th with asetiferous punctation....................................................................8

8 Capitular length equal to combined length of funicular antennomeres; elytral testaceous angular fasciae not contiguous near sutural margin (Bolivia) ............................................... ................................................................. Labasiella cochabamba OPITZ, nov.sp. (Fig. 77)

- Capitular length shorter than combined length of funicular antennomeres elytral testaceous angular fasciae contiguous near sutural margin (Ecuador)................................... ...................................................................... Labasiella mcclarini OPITZ, nov.sp. (Fig. 78)

9 Color of elytral disc unicolorous, dark brown (Chile)........................................................... .............................................................................. Labasiella varipennis SPINOLA (Fig. 89)

- Color of elytral disc bicolored...........................................................................................10

10 Elytral antemedial angular fascia fragmented ...................................................................11

- Elytral antemedial angular fascia not fragmented .............................................................12

11 Funicular antennomeres 3-5 black (Peru).............................................................................. ................................................................ Labasiella machupicchu OPITZ, nov.sp. (Fig. 85)

- Funicular antennomeres 3-5 not black (Peru)............. Labasiella lobaticollis (PIC) (Fig. 84)

12 Antemedial angular fascia broadly contiguous with humeral infuscation (Peru) .................. .......................................................................... Labasiella stangei OPITZ, nov.sp. (Fig. 87)

- Antemedial angular fascia not broadly contiguous with humeral infuscation ...................13

13 Ten elytral striae (Argentina) .................. Labasiella tucumanensis OPITZ, nov.sp. (Fig. 88)

- Eleven elytral striae...........................................................................................................14

14 Pronotum with 4 knobs; length ratio capitulum/funicle (40/55) (Argentina) ........................ .............................................................................. Labasiella lata (SOLERVICENS) (Fig. 83)

- Pronotum with 6 knobs; length ratio capitulum/funicle not as above (Bolivia)..................... ............................................................................. Labasiella santa OPITZ, nov.sp. (Fig. 86)